Patents by Inventor Kenichi Katae

Kenichi Katae has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8137230
    Abstract: A reduction gear having a planetary gear set for reducing the output rotation speed of a motor, a counter gear set for reducing the output rotation speed of the planetary gear set, and a planetary gear set for reducing the output rotation speed of the counter gear set. The output shaft and input shaft that are on the same axis and belong to the planetary gear set are arranged in parallel with the output shaft and input shaft that are on the same axis and belong to the planetary gear set. The input shaft of the counter gear set is common to the output shaft of the planetary gear set. The output shaft of the counter gear set acts commonly as the input shaft of the planetary gear set.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: March 20, 2012
    Assignees: Aisin Seiki Kabushiki Kaisha, Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Masahiro Omura, Atsushi Torii, Kenichi Katae
  • Patent number: 7763825
    Abstract: An axle beam for an industrial vehicle has a beam and a boss. The beam is supported on a vehicle body. The boss is provided at opposite ends of the beam for supporting a kingpin. The beam includes at a longitudinally middle thereof a portion having a closed cross-section perpendicular to a longitudinal direction of the beam and is shaped at the portion to form a space which is surrounded by a front and rear and a top and bottom of the beam. The portion is formed by welding two members or by one tube member.
    Type: Grant
    Filed: February 14, 2008
    Date of Patent: July 27, 2010
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventor: Kenichi Katae
  • Publication number: 20100009802
    Abstract: A reduction gear having a planetary gear set for reducing the output rotation speed of a motor, a counter gear set for reducing the output rotation speed of the planetary gear set, and a planetary gear set for reducing the output rotation speed of the counter gear set. The output shaft and input shaft that are on the same axis and belong to the planetary gear set are arranged in parallel with the output shaft and input shaft that are on the same axis and belong to the planetary gear set. The input shaft of the counter gear set is common to the output shaft of the planetary gear set. The output shaft of the counter gear set acts commonly as the input shaft of the planetary gear set.
    Type: Application
    Filed: October 25, 2007
    Publication date: January 14, 2010
    Inventors: Masahiro Omura, Atsushi Torii, Kenichi Katae
  • Patent number: 7458725
    Abstract: The present invention provides a bearing sealing method for sealing a bearing member which is interposed between a first member and a second member and allows relative rotation between the first member and the second member. The method includes the steps of keeping the bearing member under a sealed state by interposing a seal between the first member and second member; and releasing the bearing member from the sealed state by bending a first seal element of the seal outward only upon pressure increase in the sealed bearing member. The first seal element is normally in contact with one of the first member and the second member.
    Type: Grant
    Filed: December 7, 2005
    Date of Patent: December 2, 2008
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventor: Kenichi Katae
  • Patent number: 7320385
    Abstract: A camera lifting apparatus is used in an industrial vehicle equipped with a cargo handling apparatus for lifting a cargo carrying carriage up and down along a mast provided on a vehicle body. The carriage has a cargo carrying apparatus. The camera lifting apparatus comprises a camera unit attached to the cargo carrying apparatus. The camera unit has a camera for picking up an image of a work area of the cargo carrying apparatus. A moving mechanism moves the camera unit relatively to the cargo carrying apparatus. An actuator drives the moving mechanism.
    Type: Grant
    Filed: February 18, 2002
    Date of Patent: January 22, 2008
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Kenichi Katae, Hisashi Ichijo, Torahiko Yamanouchi
  • Patent number: 7219769
    Abstract: A load handling operation control apparatus for an industrial vehicle, which has a load carrying apparatus provided movably on a vehicle body, is provided. A load carrying apparatus 2 is positioned with a load handling target 41, 42 according to its movement. A load handling control section 47 has a display device 28 and a detection device for detecting the position of the load handling target. A image control section 46 displays positioning information for supporting positioning of the load carrying apparatus 2 with respect to the load handling target 41, 42 on the display device 28 based on a positional detection result detected by the detection device.
    Type: Grant
    Filed: February 18, 2002
    Date of Patent: May 22, 2007
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Torahiko Yamanouchi, Hisashi Ichijo, Kenichi Katae
  • Patent number: 7204338
    Abstract: A steering wheel mounted on a forklift 1 is provided with a steering wheel knob 17 which can be operated with one hand holding it. The steering wheel knob 17 has an approximately egg-like shape with switches 46, 47 provided on its end face. Incorporated in the steering wheel knob 17 are a transmission circuit 49, which radio-transmits a signal when the switches 46, 47 are operated, and a battery 51. The signal transmitted from the steering wheel knob 17 is received by a reception section 68 on a vehicle body 2 and a controller 48 executes predetermined control based on that signal.
    Type: Grant
    Filed: February 18, 2002
    Date of Patent: April 17, 2007
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Kenichi Katae, Hisashi Ichijo
  • Patent number: 7204499
    Abstract: An axle supporting structure for supporting an axle beam for an industrial vehicle includes a center pin, a pair of axle supporting units and a counterweight. The center pin protrudes from the axle beam. Each axle supporting unit has formed therethrough an insertion hole in which the center pin is inserted. The axle supporting unit has an upper axle supporting member and a lower axle supporting member which is detachably connected to the upper axle supporting member. The pair of axle supporting units is spaced from each other in a traveling direction of the vehicle. The center pin is rotatably supported between the pair of axle supporting units. The upper axle supporting members of the axle supporting units are cast in the counterweight.
    Type: Grant
    Filed: April 20, 2004
    Date of Patent: April 17, 2007
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Takahito Miyake, Hiroshi Kobayashi, Shuo Uematsu, Tomomichi Miura, Kenichi Katae
  • Publication number: 20060120648
    Abstract: The present invention provides a bearing sealing method for sealing a bearing member which is interposed between a first member and a second member and allows relative rotation between the first member and the second member. The method includes the steps of keeping the bearing member under a sealed state by interposing a seal between the first member and second member; and releasing the bearing member from the sealed state by bending a first seal element of the seal outward only upon pressure increase in the sealed bearing member. The first seal element is normally in contact with one of the first member and the second member.
    Type: Application
    Filed: December 7, 2005
    Publication date: June 8, 2006
    Inventor: Kenichi Katae
  • Patent number: 7010404
    Abstract: A camera 19 picks up an image of a cargo handling target and acquires image data of a mark affixed to the cargo handling target. An image processing section 66 performs image recognition of the mark and acquires the position and size of the mark in a screen coordinate system. A real coordinate position calculating section 77 acquires the position of the camera 19 in a real coordinate system based on the obtained position and size of the mark. Based on the position of the camera 19, a deviation amount calculating section 78 acquires a deviation amount between the current position of forks and a target position. A cargo handling control section 50 executes automatic positioning control of the forks in such a way that the deviation amount becomes zero.
    Type: Grant
    Filed: February 18, 2002
    Date of Patent: March 7, 2006
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Hisashi Ichijo, Kenichi Katae, Torahiko Yamanouchi
  • Publication number: 20040227395
    Abstract: An axle beam for an industrial vehicle has a beam and a boss. The beam is supported on a vehicle body. The boss is provided at opposite ends of the beam for supporting a kingpin. The beam includes at a longitudinally middle thereof a portion having a closed cross-section perpendicular to a longitudinal direction of the beam and is shaped at the portion to form a space which is surrounded by a front and rear and a top and bottom of the beam. The portion is formed by welding two members or by one tube member.
    Type: Application
    Filed: May 11, 2004
    Publication date: November 18, 2004
    Inventor: Kenichi Katae
  • Publication number: 20040217571
    Abstract: An axle supporting structure for supporting an axle beam for an industrial vehicle includes a center pin, a pair of axle supporting units and a counterweight. The center pin protrudes from the axle beam. Each axle supporting unit has formed therethrough an insertion hole in which the center pin is inserted. The axle supporting unit has an upper axle supporting member and a lower axle supporting member which is detachably connected to the upper axle supporting member. The pair of axle supporting units is spaced from each other in a traveling direction of the vehicle. The center pin is rotatably supported between the pair of axle supporting units. The upper axle supporting members of the axle supporting units are cast in the counterweight.
    Type: Application
    Filed: April 20, 2004
    Publication date: November 4, 2004
    Inventors: Takahito Miyake, Hiroshi Kobayashi, Shuo Uematsu, Tomomichi Miura, Kenichi Katae
  • Publication number: 20040098146
    Abstract: A camera lifting apparatus is used in an industrial vehicle equipped with a cargo handling apparatus for lifting a cargo carrying carriage up and down along a mast provided on a vehicle body. The carriage has a cargo carrying apparatus. The camera lifting apparatus comprises a camera unit attached to the cargo carrying apparatus. The camera unit has a camera for picking up an image of a work area of the cargo carrying apparatus. A moving mechanism moves the camera unit relatively to the cargo carrying apparatus. An actuator drives the moving mechanism.
    Type: Application
    Filed: July 25, 2003
    Publication date: May 20, 2004
    Inventors: Kenichi Katae, Hisashi Ichijo, Torahiko Yamanouchi
  • Publication number: 20040083025
    Abstract: A load handling operation control apparatus for an industrial vehicle, which has a load carrying apparatus provided movably on a vehicle body, is provided. A load carrying apparatus 2 is positioned with a load handling target 41, 42 according to its movement. A load handling control section 47 has a display device 28 and a detection device for detecting the position of the load handling target. A image control section 46 displays positioning information for supporting positioning of the load carrying apparatus 2 with respect to the load handling target 41, 42 on the display device 28 based on a positional detection result detected by the detection device.
    Type: Application
    Filed: July 25, 2003
    Publication date: April 29, 2004
    Inventors: Torahiko Yamanouchi, Hisashi Ichijo, Kenichi Katae
  • Publication number: 20040073359
    Abstract: A camera 19 picks up an image of a cargo handling target and acquires image data of a mark affixed to the cargo handling target. An image processing section 66 performs image recognition of the mark and acquires the position and size of the mark in a screen coordinate system. A real coordinate position calculating section 77 acquires the position of the camera 19 in a real coordinate system based on the obtained position and size of the mark. Based on the position of the camera 19, a deviation amount calculating section 78 acquires a deviation amount between the current position of forks and a target position. A cargo handling control section 50 executes automatic positioning control of the forks in such a way that the deviation amount becomes zero.
    Type: Application
    Filed: July 25, 2003
    Publication date: April 15, 2004
    Inventors: Hisashi Ichijo, Kenichi Katae, Torahiko Yamanouchi
  • Publication number: 20040050612
    Abstract: A steering wheel mounted on a forklift 1 is provided with a steering wheel knob 17 which can be operated with one hand holding it. The steering wheel knob 17 has an approximately egg-like shape with switches 46, 47 provided on its end face. Incorporated in the steering wheel knob 17 are a transmission circuit 49, which radio-transmits a signal when the switches 46, 47 are operated, and a battery 51. The signal transmitted from the steering wheel knob 17 is received by a reception section 68 on a vehicle body 2 and a controller 48 executes predetermined control based on that signal.
    Type: Application
    Filed: July 25, 2003
    Publication date: March 18, 2004
    Inventors: Kenichi Katae, Hisashi Ichijo
  • Patent number: 6514002
    Abstract: A grease hold extends in an axial direction from one end of a rotary pin to an eccentric portion, and a pair of grease injection holes communicating to the grease hole is open on the outer circumferential surface of the eccentric portion. These grease injection holes are arranged so as to be axially separated on both sides from a central portion C of the eccentric portion by L/4 when L is an length of the eccentric portion.
    Type: Grant
    Filed: July 9, 1999
    Date of Patent: February 4, 2003
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Kenichi Katae, Kenji Chino, Yoshihisa Iwanaga
  • Patent number: 6435527
    Abstract: A toe-angle adjusting mechanism that accurately adjust a toe angle of a wheel. The mechanism includes adjusting pins and a locking plate. The adjusting pins have eccentric shafts and engagement shafts. The locking plate has engaging holes. The locking plate prevents rotation of the adjusting pins by fitting the engaging holes with the engagement shafts.
    Type: Grant
    Filed: September 25, 2000
    Date of Patent: August 20, 2002
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventor: Kenichi Katae
  • Patent number: 6402168
    Abstract: A steering device for an industrial vehicle such as forklift. A pair of knuckle arms are rotatably supported at the ends of a rear axle. Each knuckle arm supports a rear wheel. A cylinder located in the rear axle includes an actuator rod. A pair of tie-rods couple the ends of the actuator rod to the knuckle arms. A toe angle adjusting mechanism is located between one end of the actuator rod and the corresponding tie-rod. The toe angle adjusting mechanism includes an adjuster pin having an eccentric shaft. The toe angle of the rear wheel that does not have the toe angle adjusting mechanism is adjusted by changing the neutral position of the actuator rod relative to the cylinder. Thereafter, the toe angle of the other rear wheel is adjusted by the toe angle adjusting mechanism, which facilitates adjustment of the toe angle of the wheels. The location and number of angle adjusting mechanisms are varied in alternate embodiments.
    Type: Grant
    Filed: July 23, 1999
    Date of Patent: June 11, 2002
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Kenji Chino, Kenichi Katae, Yoshihisa Iwanaga
  • Patent number: 6257679
    Abstract: A rear axle beam for pivotally supporting a body frame of an industrial vehicle, including a boss-engaging areas formed on each end of the axle beam, and at least a pair of bosses, is provided. Each boss includes an axle-engaging area and is fixed to a respective end of the axle beam such that each axle-engaging area engages with a corresponding one of the boss-engaging areas. The novel axle beam reduces the force applied to weld beads between the bosses and the rear axle body of industrial vehicles.
    Type: Grant
    Filed: July 1, 1999
    Date of Patent: July 10, 2001
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Kenji Chino, Kenichi Katae, Yoshihisa Iwanaga